During last week’s 3rd Slovenian IPv6 summit (program description in English-resembling form) I had a short presentation on IPv6-related NAT topics. The initial idea was to cover only the technical details of NAT64/DNS64, but as nobody jumped at the opportunity to explain the differences between various NAT-based solutions to the audience, I decided to switch back to my default “big picture” perspective and describe the need for NAT, various NAT-like solutions and as many details about NAT64/DNS64 as my 30-minute slot permitted. Luckily, one of the other presenters was AWOL, so my slot got extended.

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5 comments:

Nice presentation, I made one about NAT64 at PLNOG conference in March in Poland. But why you haven't mentioned anything about performance of NAT64 and readiness of Cisco devices to handle NAT64? IMO it's good that we have an option of IPv6-to-IPv4 translations but performance of this solution is really poor, or at least not acceptable for SP and Enterprise customers.

Good presentation but as you are aware since IPv6 roots were almost in the ISO's realm and almost casted as decnet v5 one thing to keep in mind.

IP was around in 1980 and we didn't really touch it until 1995 on a significant level. So did we blow 15 years for IP? Not really different environments then but by the time 1995 rolled around IP was already "old" granted other protocols came along in the 90s but that is the consideration when v6 is discussed and some folks state hey its been 12 years(since 1999) and its old.. Heck we almost had SIPP or TUBA. Thank god for the IETF!!!!!

with all the ISIS TRILL Fabric type discussions about a non SPT L2 multipath environment would we have been better off if the ISO had won out and took full ownership of IPv6 and integreated into CLNS.

The author

Ivan Pepelnjak (CCIE#1354 Emeritus), Independent Network Architect at ipSpace.net,
has been designing and implementing large-scale data communications networks as well as teaching and writing books about advanced internetworking technologies since 1990.